A fluorophore-labeled human cell. A fluorophore (or fluorochrome, similarly to a chromophore) is a fluorescent chemical compound that can re-emit light upon light excitation. Fluorophores typically contain several combined aromatic groups, or planar or cyclic molecules with several Ï bonds.
IN THIS TOPIC. Pregnancy symptoms are different for everyone, and can vary from month to month and even from pregnancy to pregnancy. Find out what to expect, from the earliest pregnancy symptoms to the wooziness of morning sickness to the aches and pains of your third trimester.
However, morning sickness is a common symptom of early pregnancy. It often starts when you're about six weeks pregnant, though it can start as early as four weeks. You may feel sick and queasy, or even vomit.Despite the name, morning sickness can affect you at any time of the day, or night.owever, morning sickness is a common symptom of early pregnancy. It often starts when you're about six weeks pregnant, though it can start as early as four weeks. You may feel sick and queasy, or even vomit.